2017年12月英语四级阅读训练题251
文都四六级小编得知2017年6月全国大学英语四六级成绩查询入口已开通——【点击查询成绩】,文都四六级小编提醒各位考生：英语四级考试中四级阅读所占比重为百分之三十五，阅读训练的重要性不言而喻，然而四级阅读技巧也是一门学问。来看看文都四六级小编为各位整理的2017年12月英语四级阅读理解训练(251)——环境问题，请各位考生及时练习。【重点】英语四六级准考证号忘记的考生可以用这种方法查
2017年6月六级成绩查询:8月22日！查分攻略备在手！
2017年6月大学英语四六级成绩入口8月22日开通
Where do pesticides fit into the picture of environmental disease? We have seen that they now pollute soil,water and food, that they have the power to make our streams fishless and our gardens and woodlands silent and birdless. Man, however much he may like to pretend the contrary, is part of nature. Can he escape a pollution that is now so thoroughly distributed throughout our world:
We know that even single exposures to these chemicals, if the amount is large enough, can cause extremely severe poisoning. But this is not the major problem. The sudden illness or death of farmers, farmworkers, and others exposed to sufficient quantities of pesticides is very sad and should not occur. For the population as a whole, we must be more concerned with the delayed effects of absorbing small amounts of the pesticides that invisibly pollute our world.
Responsible public health officials have pointed out that the biological effects of chemicals are cumulative over long periods of time, and that the danger to individual may depend on the sum of the exposures received throughout his lifetime. For these very reasons the danger is easily ignored. It is human nature to shake off what may seem to us a threat of future disaster. "Men are naturally most impressed by diseases which have obvious signs, " says a wise physician, Dr Rene Dubos, "yet some of their worst enemies slowly approach them unnoticed."
1.Which of the following is closest in meaning to the sentence "Man…is part of nature" (Para. 1, Lines 3-4)?
A. Man appears indifferent to what happens in nature.
B. Man acts as if he does not belong to nature.
C. Man can avoid the effects of environmental pollution.
D. Man can escape his responsibilities for environmental effects of pesticides?
2. What is the author"s attitude toward the environmental effects of pesticides?
A. Pessimistic
B. Indifferent
C. Defensive
D. Concerned
3. In the author"s view, the sudden death caused by exposure to large amounts of pesticides _____.
A. is not the worst of the negative consequences resulting from the use of pesticides
B. now occurs most frequently among all accidental deaths
C. has sharply increased so as to become the center of public attention
D. is unavoidable because people can"t do without pesticides in farming
4. People tend to ignore the delayed effects of exposure to chemical because _____.
A. limited exposure to them does little harm to people"s health
B. the present is more important for them than the future
C. the danger does not become apparent immediately
D. humans are capable of withstanding small amounts of poisoning
5. It can be concluded from Dr. Dubos remarks that _____.
A. people find invisible diseases difficult to deal with
B. attacks by hidden enemies tend to be fatal
C. diseases with obvious signs are easy to cure
D. people tend to overlook hidden dangers caused by pesticides
【答案解析】
1-5 BDACD
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